title: Coupler-apodized Bragg-grating add-drop filter.
abstract: We demonstrate an apodization technique using tapered coupler gaps in grating-assisted asymmetric couplers, which circumvents the need for tapered waveguide perturbations and enables a higher tolerance to fabrication errors. A high sidelobe suppression ratio of 30 dB has been obtained on the submicrometer silicon-on-insulator platform using a CMOS-compatible photonics process with 193 nm lithography.
authors.forename: Wei
authors.initials: W
authors.lastname: Shi
authors.forename: Han
authors.initials: H
authors.lastname: Yun
authors.forename: Charlie
authors.initials: C
authors.lastname: Lin
authors.forename: Jonas
authors.initials: J
authors.lastname: Flueckiger
authors.forename: Nicolas A F
authors.initials: NA
authors.lastname: Jaeger
authors.forename: Lukas
authors.initials: L
authors.lastname: Chrostowski